Calculator Inputs
Example Data Table
| Scenario | Loan Amount | Rate | Term | Payment Frequency | Extras | Balloon | Purpose |
|---|---|---|---|---|---|---|---|
| Standard amortizing | PKR 2,000,000 | 12% | 5 years | Monthly | PKR 10,000 | PKR 0 | Faster payoff planning |
| Fee-heavy loan | PKR 1,200,000 | 14.5% | 4 years | Monthly | PKR 0 | PKR 0 | Compare borrowing costs |
| Balloon structure | PKR 3,500,000 | 10.75% | 7 years | Quarterly | PKR 0 | PKR 500,000 | Lower regular installments |
Formula Used
i = (1 + r / c)^(c / p) - 1Where
r is the nominal annual rate, c is compounding periods per year, and p is payment periods per year.
PMT = i × ((PV × (1 + i)^n) - FV) / ((1 + i)^n - 1)Here
PV is financed principal, FV is balloon balance, and n is planned payment count.
PMT = (PV - FV) / n
New Balance = Old Balance + Interest - Principal - Extra - Balloon
Total Outflow = Sum of all payments + upfront feesThe calculator also separates interest, origination charges, service fees, and insurance costs.
How to Use This Calculator
- Enter the loan amount, annual interest rate, and loan term.
- Select whether the term is in months or years.
- Choose payment frequency and compounding frequency carefully.
- Add origination percentage, fixed fees, service charges, and insurance if applicable.
- Choose whether origination charges are financed or paid upfront.
- Enter any extra principal payment you plan to make regularly.
- Add a balloon payment only if your contract leaves a final balance.
- Submit the form to view total repayment, payoff timing, chart, and amortization preview.
FAQs
1) What does total repayment include?
It includes regular installments, extra principal, balloon payment, recurring service fees, insurance charges, and any upfront fees not financed into the balance.
2) How do extra payments affect the result?
Extra principal reduces outstanding balance faster. That usually lowers total interest and may shorten the number of payments needed to clear the loan.
3) Why does financed principal differ from loan amount?
Financed principal becomes higher when origination charges are rolled into the loan. You then pay interest on those financed fees as well.
4) What is a balloon payment?
A balloon payment is a large final amount due near the end. It lowers regular installments but leaves a remaining balance to settle later.
5) Why do compounding and payment frequencies matter?
Different compounding and payment schedules change the effective periodic rate. That shifts interest accumulation and the final repayment total.
6) Can this handle zero-interest loans?
Yes. When the rate is zero, the calculator switches to a straight-line repayment formula and still includes fees, insurance, extras, and balloon assumptions.
7) Is the amortization table complete?
The page shows a preview for readability. The CSV export contains the full payment-by-payment schedule generated from your current inputs.
8) Should I rely on this instead of lender documents?
Use it for planning and comparison. Always confirm exact obligations, penalties, insurance rules, and disclosure terms with your lender’s contract.